20080143

素因数分解:

$3^4\times {\mathrm{157}}^1\times {\mathrm{1579}}^1$

素因数の和:1748

約数の個数: 20

約数和(自身を含む): 30206440

約数和(自身を除く): 10126297

約数列:

[1, 3, 9, 27, 81, 157, 471, 1413, 1579, 4239, 4737, 12717, 14211, 42633, 127899, 247903, 743709, 2231127, 6693381, 20080143]

約数ペア:

[(1, 20080143), (3, 6693381), (9, 2231127), (27, 743709), (81, 247903), (157, 127899), (471, 42633), (1413, 14211), (1579, 12717), (4239, 4737)]